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Table 3 Association between context of drinking in early adolescence and incident risky drinking in later adolescence

From: Does the social context of early alcohol use affect risky drinking in adolescents? Prospective cohort study

    

Incidence over waves 3 to 6 (N = 1647)

  

Number drinking in each contextb

Number incident

Model estimatesa

   

Risky drinking

Unadjustedc

Adjustedd

Drinking context

Number

(%)

Number

(%)

RR

(95 % CI)

RR

(95 % CI)

With family

no

1437

(87)

441

(31)

1

 

1

 
 

yes

209

(13)

115

(55)

2.2

(1.8 – 2.8)

1.9

(1.5 – 2.4)

Home alone

no

1577

(96)

507

(32)

1

 

1

 
 

yes

70

(4)

50

(71)

3.3

(2.4 – 4.6)

2.4

(1.6 – 3.6)

At a pub/club

no

1550

(94)

494

(32)

1

 

1

 
 

yes

97

(6)

63

(65)

2.9

(2.1 – 4.0)

2.5

(1.7 – 3.5)

At a party

no

1338

(81)

354

(26)

1

 

1

 
 

yes

308

(19)

203

(66)

3.7

(3.0 – 4.5)

2.9

(2.3 – 3.7)

In a park/car

no

1510

(92)

459

(30)

1

 

1

 
 

yes

137

(8)

98

(71)

3.8

(2.9 – 5.0)

2.5

(1.9 – 3.4)

  1. aSeparate model fitted for each drinking context
  2. bPrevalence for those who had no risky drinking in waves 1 & 2
  3. cRelative risks from multivariable discrete time proportional hazards models adjusted for wave of observation of risky drinking
  4. dRelative risks from multivariable discrete time proportional hazards models adjusted for: (a) the wave of observation of risky drinking, (b) background measures: sex, rural school location, parental separation/divorce, parental frequent alcohol use and parental cigarette smoking (c) adolescent measures from the previous wave: daily cigarette smoking, weekly + cannabis use, antisocial behaviour and symptoms of anxiety and depression